| Autor: |
Zvietcovich F, Nair A, Ambekar YS, Singh M, Aglyamov SR, Twa MD, Larin KV |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2020 Dec 01; Vol. 45 (23), pp. 6567-6570. |
| DOI: |
10.1364/OL.410593 |
| Abstrakt: |
We present an air-coupled ultrasonic radiation force probe co-focused with a phase-sensitive optical coherence tomography (OCT) system for quantitative wave-based elastography. A custom-made 1 MHz spherically focused piezoelectric transducer with a concentric 10 mm wide circular opening allowed for confocal micro-excitation of waves and phase-sensitive OCT imaging. Phantom studies demonstrated the capabilities of this probe to produce quasi-harmonic excitation up to 4 kHz for generation of elastic waves. Experimental results in ocular tissues showed highly detailed 2D and 3D elasticity mapping using this approach with great potential for clinical translation. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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